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balandron [24]
2 years ago
5

Which of the following points on the xy-graph is the x-intercept of the equation y= 2x– 8? Hint: plug in first value for x, do o

rder of operations until you get the 2nd value in the coordinate)
Mathematics
1 answer:
Bad White [126]2 years ago
5 0

Answer:

Step-by-step explanation:

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If the function f(x)=mx+b has an inverse function, which statement must be true
PIT_PIT [208]

Answer:

The first option .

Step-by-step explanation:

m must not be zero

3 0
3 years ago
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You download 12 new songs to your MP3 player. then you delete 5 old songs.Write each amount as an interger
ASHA 777 [7]

Given statement is "You download 12 new songs to your MP3 player. then you delete 5 old songs."

We have to write each amount as an integer.

Download 12 new songs means you are adding number to your MP3 player so we will use + sign for 12

So the amount in integer form will be +12


Ddelete 5 old songs means you are subtracting number from your MP3 player so we will use - sign for 5

So the amount in integer form will be -5


combining both expressions we can write final statement as:

+12-5

Which can be simplified to +7.

3 0
3 years ago
How many different arrangements can be made using all the letters in the word topic
masya89 [10]
Number of difference arrangements = 5! = 5 x 4 x 3 x 2 x 1 = 120

Answer: There are 120 different arrangements.
4 0
3 years ago
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What is 1+1? Wrong answers only
pishuonlain [190]

Answer:

21

Step-by-step explanation:

6 0
2 years ago
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At a store Mary please $34 for 2 pounds of apples 1 pound of berries and 4 pounds of chairs Tom pays $35 for 3 pounds of apples
MrRa [10]

Answer:

34 = 2A + 1B + 4C

35 = 3A + 2B+ 2C

49 = 5A + 3B+ 2C

Pairs the 1st and 2nd equation, then eliminates C:

34 = 2A + 1B + 4C

35 = 3A + 2B + 2C

34   =  2A  +  1B + 4C

-70 = -6A + -4B + -4C  <---- multiplies 2nd equation by -2

Adds them together

-36 = -4A + -3B

36 = 4A + 3B  <----- please label this equation ALPHA

Next, pairs the 2nd and 3rd equations, and eliminates C:

35 = 3A + 2B+ 2C

49 = 5A + 3B+ 2C

Subtracts the top equation from the bottom:

49-35 = 5a-3a + 3b-2b + 2c-2c

14 = 2a + b <--- please label this equation BETA

ALPHA: 36 = 4A + 3B

BETA:   14 = 2a + b

Solves the 2x2 system by substitution:

BETA: 14 - 2a = b <---- solves equation BETA for b

Substitutes into equation ALPHA:

36 = 4a + 3(14 - 2a)

36 = 4a + 42 - 6a

36 = 42 - 2a

-6 = -2a

a=3

b = 14 - 2a = 14 - 2(3) = 14 - 6 = 8

34 = 2a + b+ 4c

34 = 2(3)+ 8 + 4c

34 = 6+8 + 4c

34 = 14 + 4c

20 = 4c

c=5

1 pound of apples cost $3

1 pound of berries cost $8

1 pound of cherries cost $5

8 0
3 years ago
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